Cetirizine is used to treat symptoms of respiratory allergies like hay fever and itching due to hives. It is available in multiple forms including tablets, chewable tablets, orally disintegrating ...

As with other drugs, cetirizine can cause side effects, such as drowsiness and sore throat. If you are not able to tolerate side effects from cetirizine, talk with your doctor or pharmacist.

There is evidence that the use of some antihistamines has an effect on behavior and that this is shown most markedly as sedation (1–3). These side effects may have implications for the long-term ...

Overall, 2 small randomised controlled trials (RCTs) and 2 double-blind crossover studies (total n=76) suggest that cetirizine 20 mg daily may improve weals and itching in adults with severe chronic ...